外研版 (2019)选择性必修 第一册Unit 6 Nurturing nature优秀备课ppt课件

这是一份外研版 (2019)选择性必修 第一册Unit 6 Nurturing nature优秀备课ppt课件，共44页。

Starting ut
Step 1. Starting ut
Step 2: Extensive Reading f the Passage
Step 3: Intensive Reading f the Passage
What nature can d t us humans?
Nature can prvide everything humans need t survive and live better. Nature is ffering humans with fresh air t breath, clean water t drink and varius fd t eat. It's abslutely right that humans can't live withut nature.
What can we humans d t nature？
Peple used t think:Humans can cnquer nature.Humans can explre nature.Huamns can refrm nature.
Current SituatinUnfrtunately, as man’s desire expands, man asks fr mre and mre frm nature. As a result , the envirnment has been seriusly plluted by chemical wastes frm factries and sewage in cities. Farmland is als verwked and has lst its fertility. And a variety f wild animals are being hunted and killed. Naturally, the cnsequences are that many species f plants and animals are disappearing frm the earth and the balance f the nature is being upset. Nw nature has taken revenge n man.
It is clear that nature is full f pwer and man has the ability t explre nature ,t knw nature and refrm the nature but nt the ability t cnquer nature r cntrl nature.
Humans can explre nature.
Humans can refrm nature.
Three Grges Dam
Humans can appreciate nature.
Humans can prtect nature.
Undesrtanding ideas
1. Which is the highest railway in the wrld?A. The Trans-Siberian Railway. B. The Qinghai-Tibet Railway C. The Chengdu-Kunming Raway. 2. In which year was the cmpleted Qinghai-Tibet Railway put int peratin?A. 1984 B. 2001C. 2006.
3. Which f these statins is nt n the Qinghai-Tibet railway?A. Lhasa B. GlmudC. Lanzhu4. Which f these natural Wrld Hertage Sites des the Qinghai-Tibet Railway pass by?A. Xinjiang Tianshan. B. Qinghai Hh XilC. Suth China Karst
The Sky Railway
1. adv. 平稳地2. adj.巨大的3. adj.脆弱的4. n.地标5. adj.壮丽的6. n.永久冻土层7. adj.西藏的8. n.羚羊9. n.空闲，闲暇
_____________________________________________________________________________________________________________________
10. 空闲时11. n.湿地12. n.草原13. n.辐射14. adj.如镜面般的15. v.徘徊16. n.风景，景色17. n.高原18. n.经济
mirrr-like
at ne's leisure
青藏铁路（Qinghai-Tibet Railway），简称青藏线，是一条连接青海省西宁市至西藏自治区拉萨市的国铁Ⅰ级铁路，是中国新世纪四大工程之一，也是世界上海拔最高、线路最长的高原铁路。 青藏铁路全长1956公里，分两期建成。一期工程东起西宁市，西至格尔木市，1984年5月建成通车；二期工程东起格尔木市，西至拉萨市，2006年7月1日全线通车。
7 years f hard wrk and nearly 2,000 kilmeters. Wrkers have finished replacing the track alng all 1956 kilmeters f the railway n the Qinghai-Tibet Plateau. The wrk began in 2010 with a ttal investment f clse t 1.3 billin yuan. The high-elevatin line cnnects Xining, Qinghai Prvince with Lhasa, Tibet. It's the wrld's highest railway that basts the lngest sectin in plateau areas. Since its inauguratin a decade ag, the railway has seen mre than 118 millin passenger trips and transprted sme 455 millin tns f freight.
First phase
Understanding idaes
Extensive reading fr1. the main idea f the passage (skimming)2. the main idea f each paragraph (skimming)3. the rganizatin f the passage4. specific details in the passage (scanning)
Sitting back in my seat, I can‘t quite believe that I’m abut t travel alng the railway that many freign experts claimed was “impssible”. The train has been racing alng steadily since it left Xining. All this time, the sng “Sky Railway” has been playing inside my head. The wrds “railways like massive dragns are winding amng the muntains” seem particularly vivid as I travel acrss the “rf f the wrld”.靠坐在火车的座位上，我简直不敢相信，我将要沿着许多外国专家声称“不可能建成”的铁路旅行。火车从西宁出发，向前平稳行驶。一路上，《天路》这首歌一直在我的脑海中回响。当火车开过“世界屋脊”时，“一条条巨龙翻山越岭”的歌词显得格外生动鲜活。
Main idea: I'm abut t travel alng Qinghai-Tibet Railway.
I was ne f the peple wh came frm all parts f China t wrk n this railway. Taking years t cmplete, the Qinghai-Tibet Railway is a recrd f all f ur effrts t vercme the mst difficult engineering challenges. Hw t prtect the delicate ecsystem was amng the tp cncerns.修建青藏铁路的工人来自全国各地，而我就是其中之一。它历时数年建成，凝聚着我们攻克种种工程难题的全部心血。其中，如何保护脆弱的生态系统是需要我们首要问题之一。
Main idea: Hw t prtect the delicate ecsystem was the tp cncerns f varius difficult engineering challenges.
The first landmark t catch my eye is the splendid Qingshuihe Bridge, the wrld's lngest bridge built ver permafrst. Lk! A grup f Tibetan antelpes is mving under the bridge, with sme stpping t eat grass at their leisure. Thirty-three passages have been built under the railway t allw the animals t mve safely and freely in their natural habitat. Wild animals such as these Tibetan antelpes have nw been using these passages fr years. They seem ttally unaware that we are speeding past at ver 100 kilmetres an hur.最先映入眼帘的地标性建筑是壮观的清水河大桥，它是世界上最长的高原冻土铁路桥。看！一群藏羚羊正从桥下走过，有的停下来悠闲地吃草。铁路桥下修建了三十三条野生动物通道，让动物得以在自然栖息地中安全自由地通行。就像现在的这群藏羚羊一样，野生动物们使用这些通道已有数年，它们似乎完全没有意识到我们正以每小时100多千米的速度呼啸而过。
Main idea: Thirty-three passages were built under Qingshuihe Bridge t allw animals mve safely and freely.
T prevent damage t wetlands and grasslands, 675 bridges with a ttal length f abut 160 kilmetres were built between Glmud and Lhasa. We even mved 140,000 square metres f wetland t a new area in rder t prtect its distinct ecsystem.为了避免破坏湿地和草原，我们在格尔木和拉萨之间建造了675座大桥，总长度约160千米。我们甚至将一块14万平方米的湿地迁往一个新的区域，以保护其独特的生态系统。
Main idea: 675 bridges were built t prevent damage t wetlands and grasslands.
The jurney has been flying by, and befre I knw it, we have reached Tanggula Statin. Lcated at ver 5,000 metres abve sea level, this is the highest railway statin in the wrld. In lcatins such as this, the thin air, changeable weather and high levels f UV radiatin presented perhaps the greatest challenge fr railway wrkers. T make sure we stayed healthy, several xygen-making statins were cnstructed. We were als able t enjy regular breaks in lwer areas.火车一路疾驰，还没等我反应过来，我们就已经到达了唐古拉车站。它位于海拔5,000多米的地方，是世界上海拔最高的火车站。在这样的高海拔环境中，稀薄的氧气，多变的天气，还有强烈的紫外线辐射，这些恐怕是我们铁路工人面临的最大挑战。为了确保工人的身体健康，我们建造了多个制氧站。我们还会定期到低海拔地区休整。
Main idea: Several xygen-making statins were tructed fr railway wrkers.
As we pass Cuna Lake, I feel a sense f pride and achievement. Using thusands and thusands f sandbags, we built a twenty-kilmetre wall alng the lake t prtect it frm cnstructin waste. Cuna Lake is s clse t the railway that I want t reach ut and tuch its pale blue mirrr-like surface. Water birds playing in the lake, and cattle and sheep wandering the grasslands bring the scenery t life.火车经过措那湖时，一股自豪感和成就感在我心中油然而生。当年，我们沿着措那湖边用成千上万个沙袋筑起了一道二十千米的保护墙，使它免受建筑废料的污染。现在，措那湖离火车这么近，我好想伸手去触摸它那镜面似的浅蓝色湖面。湖中嬉戏的水鸟，在草原上游荡的牛羊，让这片风景充满勃勃生机。
Main idea: A twenty-kilmetre wall alng the lake were built t prtect Cuna Lake frm cnstructin waste.
The Qinghai-Tibet Plateau has been attracting peple's admiratin fr centuries. Nw, thanks t ur effrts, passengers frm all ver the cuntry have been enjying these magical landscapes. I am prud that we built ur “impssible” railway, and did s with the care that the envirnment deserves. It truly is an extrardinary “Sky Railway”.几个世纪以来，青藏高原是无数人向往的地方。如今，由于我们的努力，来自全国各地的旅客都能亲眼观赏到这片神奇的土地。我们建成了一条“不可能建成”的铁路，并且给予当地环境充分的保护，我为此感到骄傲和自豪。青藏铁路真是一条了不起的“天路”。
Main idea: I am prud that we built ur “impssible” railway, and did s with the care that the envirnment deserves.
Organizatin f the passage
Part 1: Para 1-2When cnsidering vercming the mst difficult engineering challenges, hw t prtect the delicate ecsystem was amng ur tp cncerns.
Part 2: Para 3-6The challenges and slutins.
Part 3: Para 7We built the Qinghai-Tibet Railway with care that the envirnment desreves.
Thirty-three passages
mve safely and freely in their natural habitat
prevent damage t wetland and grasslands
a ttal length f abut 160 kilmeters
were mved t a new area
Several xygen-making statins
regular breaks
prtect Cuna Lake frm cnsttin waste
build a twenty-kilmeter wall
prtect it frm being plluted by cnstructin waste
Chse the best answer accrding t the passage.
1. What's the authr's purpse in writing the passage?A. T prve that humans can cnquer nature.B. T highlight the amunt f wrk required t build the Qinghai-Tibet Railway.C. T praise the wrkers' effrts in building the Qinghai-Tibet Railway. D. T prve that humans can't survive withut nature.
2. What d yu knw frm the passage?A. The splendid Qingshuihe Bridge is the wrlds highest ne built ver permafrst.B. Amng the difficult engineering challenges, hw t prtect the wild animals was the tp cncern.C. A twenty-kilmter wall was built alng Cuna Lake t prtect it frm cnstructin waste.D. The speed f a train is limited t 100 kilmters an ur n the Qinghai-Tibet Railway.
3. Which is right abut the Qinghai-Tibet Railway EXCEPT_______?A. Tanggula Statin is the highest statin in the wrld.B. Qingshuihe Bridge is the wrld's lngest bridge built ver permafrst.C. Qinghai-Tibet Railway is the highest and lngest the highest plateau railway in the wrld.D. Qinghai-Tibet has the largest number f bridges alng its way.
Develping idaes
Intensive reading fr1. key wrds and expressin in the passage2. grammar structure in the passage
Sitting back in my seat, I can't quite believe that I’m abut t travel alng the railway that many freign experts claimed was “impssible”. The train has been racing alng steadily since it left Xining. All this time, the sng “Sky Railway” has been playing inside my head. The wrds “railways like massive dragns are winding amng the muntains” seem particularly vivid as I travel acrss the “rf f the wrld”.
sitting是动词的现在分词，作方式状语，与逻辑主语I是主动关系
关系代词that引导的定语从句，定语从句还原后为：many freign experts claimed (that) the railway was impssible. 关系词在定语从句中作主语，不可以省略。
现在完成进行时，表示动作从某一时间开始，一直持续到现在，或者刚刚终止，或者可能仍然要继续下去。 其构成为：主语+助动词（have/has）+been+动词的现在分词+其他成分。
The Chinese have been making paper fr tw thusand years.(造纸一直在进行，并且会继续下去） I have been learning English since three years ag.(学英语一直在进行，并且会继续下去）
单句语法填空1. “Can't yu read?” Mary said, angrily _________(pint) t the ntice.2. There is n greater pleasure than lying n my bck in the middle f the grassland, ___________(stare) at the night sky.3. When I was little, my mther used t sit by my bed, __________(tell) me stries till I fell asleep.4. After ____________(hear) yur sad stries, he will say sme wrds ___________are nice and warm.5. Maybe yu have a habit ___________ is driving yur family crazy.
I was ne f the peple wh came frm all parts f China t wrk n this railway. Taking years t cmplete, the Qinghai-Tibet Railway is a recrd f all f ur effrts t vercme the mst difficult engineering challenges. Hw t prtect the delicate ecsystem was amng the tp cncerns.
关系代词wh引导的定语从句， 修饰先行词peple, 关系词在定语从句中作主语，不可以省略
taking动词的现在分词作状语，与逻辑主语the Qinghai-Tibet Railway是主动关系
vercme the challenges 克服挑战
非谓语动词作状语时，要看非谓语动词与句子主语之间的逻辑关系，作状语的动词与句子主语构成主动关系时，要用现在分词形式；构成被动关系时，要用过去分词形式；表示目的，常用动词不定式，这时非谓语动词表示的动作与句子谓语动词的时间相比，是将来。
1. When___________(cmplete), the museum will be pen t the public next year.2. ___________ (ask) wh she was, she said she was Mary’s cusin.3. ___________(return) t her apartment, she fund her necklace missing.4. ___________(see) the big snake, the little girl std under the tree___________ (frighten) ut f her life.5. ___________(nt knw) her address, I can’t write t her t express my gratitude t him.6. All night lng he lay awake, ___________ (think) hw t drive the American invaders back hme.
The first landmark t catch my eye is the splendid Qingshuihe Bridge, the wrld's lngest bridge built ver permafrst. Lk! A grup f Tibetan antelpes is mving under the bridge, with sme stpping t eat grass at their leisure. Thirty-three passages have been built under the railway t allw the animals t mve safely and freely in their natural habitat. Wild animals such as these Tibetan antelpes have nw been using these passages fr years. They seem ttally unaware that we are speeding past at ver 100 kilmetres an hur.
catch ne's eys 吸引某人视线，吸引某人注意eye-catching adj 因人注目的，耀眼的，明显的
built过去分词作后置定语
with+名词/代词+ding，作状语，表示伴随的状态，sme和stpping之间是主动关系
现在完成进行时，表示从过去到目前一直持续并可能继续下去的动作
单句语法填空1. With a lt f difficult prblems _____________(settle), the newly-elected president having a hard time.2. With all the magazines I needed __________(buy), I left the pst ffice.3. China's image is imprving steadily, with mre cuntries____________(recgnize) its rle in the internatinal affairs.4. The ld cuple ften take a walk after supper in the park with their pet dg ____________(fllw) them.5. With the by__________(lead) the way, we had n truble finding the way t Beihai Park.6. With time __________(g) by, I gradually realize the imprtance f health.
t be settled
The jurney has been flying by, and befre I knw it, we have reached Tanggula Statin. Lcated at ver 5,000 metres abve sea level, this is the highest railway statin in the wrld. In lcatins such as this, the thin air, changeable weather and high levels f UV radiatin presented perhaps the greatest challenge fr railway wrkers. T make sure we stayed healthy, several xygen-making statins were cnstructed. We were als able t enjy regular breaks in lwer areas.
present the greatest challenge 面临最大的挑战
be lcated at/in+地点,位于...
表达“位于...”的方法：be lcated in/at：lie in/at：
Lcated in the bttm level f McMillan Hall, the center is available t students fr relaxing, studying, cking, and eating. 这个中心位于麦克米伦大厅的最底层，可供学生们放松，学习，做饭和吃东西
Lying in the bttm level f McMillan Hall, the center is available t students fr relaxing, studying, cking, and eating.
As we pass Cuna Lake, I feel a sense f pride and achievement. Using thusands and thusands f sandbags, we built a twenty-kilmetre wall alng the lake t prtect it frm cnstructin waste. Cuna Lake is s clse t the railway that I want t reach ut and tuch its pale blue mirrr-like surface. Water birds playing in the lake, and cattle and sheep wandering the grasslands bring the scenery t life.
动词的现在分词作方式状语，与句子主语we之间是主动关系
保护...免受...之害
独立主格结构：名词/代词+现在分词，名词/代词与现在分词之间是主动关系
1. ______________________(会议结束了), all f us went hme. 2. ______________________(没有出租车了), we had t walk. 3. ______________________(天气允许的话), they will g n an uting t the beach tmrrw. 4. ______________________________________(明天要做一个重要的讲座), the prfessr has t stay up late int the night.5. ___________________(问题得以解决), the quality has been imprved.6. ______________________(女孩盯着他), he didn't knw what t say.
用独立主格结构完成句子
The meeting being ver
There being n taxis
Weather permitting
An imprtant leacture t be given tmrrw
The prblem settled
The girl staring at him
The Qinghai-Tibet Plateau has been attracting peple's admiratin fr centuries. Nw, thanks t ur effrts, passengers frm all ver the cuntry have been enjying these magical landscapes. I am prud that we built ur “impssible” railway, and did s with the care that the envirnment deserves. It truly is an extrardinary “Sky Railway”.
attract peple's admiratin 使人向往
定语从句：环境应该得到的（关爱）
deserve 的意思是"值得""应该"，它的后面可以接动词不定式的，如∶They didn' t desere t win. 他们不该赢。They did't deserve t get such a high scre. 他们不该得那么高的分数。但是，如果当它后面所接动词具有被动意义时，也可用动名词，且这个动名词要用主动形式表示被动意义;此时若将动名词改成不定式，则要用被动形式。如∶The man deserves punishing/t be punished. 他这个人应该受到惩罚。He deserved sending/t be sent t prisn.他应当被送进监牢。
See yu next time